CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS
Percentile
15.5%
CWE-532: Insertion of Sensitive Information into Log File discovered in v9.23.1. The directus_refresh_token
is not redacted properly from the log outputs and can be used to impersonate users without their permission.
Using v9.23.1
, I am seeing that the directus_refresh_token
is not properly redacted as indicated by https://github.com/directus/directus/blob/7c479c5161639aac466c763b6b958a9524201d74/api/src/logger.ts#L13
I’m classifying this as a security vulnerability because if someone has access to the log outputs, for example with a shared Cloud account or Splunk implementation, they could exchange the refresh token using /auth/refresh
for an access token and use the token to perform actions on behalf of an unsuspecting user. This situation creates issues with accountability and non-repudiation because we can no longer have confidence that actions taken in the application were authorized or even performed by the logged-in user.
A couple of examples of this are:
The list could go on but I think these communicate the risk of an internal threat that has access to this information 😆
Set LOG_STYLE="raw"
and run Directus v9.23.1
Log in to the application
Look at the shell output and see that directus_refresh_token
is logged
> Note: This is different from the standard raw
output format. I intentionally ran this with npx directus start | pino-pretty
so logs would be easier to read. It can also be reproduced by running npx directus start
alone.
Exchange the directus_refresh_token
for an access_token
curl -X POST \
'http://0.0.0.0:8055/auth/refresh' \
--header 'Accept: */*' \
--header 'Cookie: directus_refresh_token=$shh'
Because this can be used to exploit other threats related to CWE-284: Improper Access Control I rank it with a Moderate severity. An insider with knowledge of this could do many mischievous things and get away with them for a long time without victims knowing about it.
github.com/directus/directus
github.com/directus/directus/blob/7c479c5161639aac466c763b6b958a9524201d74/api/src/logger.ts#L13
github.com/directus/directus/commit/349536303983ccba68ecb3e4fb35315424011afc
github.com/directus/directus/security/advisories/GHSA-8vg2-wf3q-mwv7
nvd.nist.gov/vuln/detail/CVE-2023-28443